Fireplace heater



Sept. 17, 1929.

O. C. MYER FIREPLACE HEATER Filed Feb. 21. 1927 5 III him IN VEN TOR.07-1-0 C. MyEe. M?

' ATTORNEY Patented Sept. 17, 1929 PATENT OTTO C. MYER, OF OAKLAND,CALIFORNIA FIREPLACE HEATER Application filed February 21, 1927. SerialNo. 169,940.

The invention relates to improvements provided infireplace heaters foruse in open fireplaces, the objects of which are to provide for greaterefficiency and to eliminate many of the troublesome features common withthe present type of said heaters.

An object of the invention is to, first, improve the construction ofheaters of the type described so as to provide a clear throat over thefireplace and thus eliminate pipes and other obstructions that have atendency to obstruct the smoke. Second, to provide an improved type ofair chamber having the innermost metal surface thereof adjacent to thefireplace shaped into the form of an arc and so arranged with respect tothe fireplace as to retard the flame therein and keep same from rapidlygoing up the flue, thus forcing more heat through the metal and into theair chamber; the arc shaped inner surface of the air chamberfurther'having a tendency to radiate heat out of the fireplace heater,the improved construction of the air chamber thus providing a greaterdegree of heat for the same amount of fuel consumed and, therefore,enabling the fireplace heater to have a higher efiiciency.

Another object of the invention is to pro- Vide the rear legs and thesides of the heater with angular shaped corners so that the fire wall ofthe fireplace heater may be fitted into said corners and incased withmortar and thereby making it impossible for smoke from the fireplace toever leak into the air heating chamber.

A further object of the invention is to provide the heater withadjustable legs so that same may be adjusted to fit different heightfireplaces.

The invention possesses other objects and features of advantage, some ofwhich, with the foregoing, will be made manifest in the followingdescription of the preferred form of the invention which is illustratedin the drawings accompanying and forming part of the application.

It is to be understood that it is not intended to limit the invention tothe embodiment shown by said drawings and description as variations maybe adapted within the scope of the invention as set forthin the claim.

In the accompanying drawings:

Figure 1 is a vertical sectional view taken on lines AA of Figure 2showing one type of fireplace and heater involving the lnvention.

Figure 2 is a front elevation of the fireplace and heater. t

Figure 3 is a heater.

Figure 4 is a horizontal sectional view taken through the air heatingair chamber 011 lines B-B Fig. 2 showing the method of discharging thehot air out of theair chamber around each side of the flue and thefireplace. I

Figure 5 is a sectional view taken on line CC of Figure 3 showing theangular shape of one of the rear legs of the heater.

According to the construction shown, there perspective view of the isillustrated in Figures 1 and 2 an open' fireplace of box like structurehaving inner side walls 6 and a front and rear wall 7 and 8,respectively, it being understood that the width and depth of thefireplace and the smoke flue extendingthereabove may be of anyproportional size or shape that will best accommodate the inventionwhich will hereinafter be described.

The improved heater is -made ofa suitable metal and mounted in thefireplace as shown in Figure 1. The numeral 9 designates an improved airheating chamber having the innermostface 10 thereof formed in the shapeof an arc and which extends over and above the fireplace so as toprevent the flame from rapidly going up the flue and also to reflect aportionjof the heat out of the fireplace.

An air inlet 11 is' provided to supply air to the chamber 9 and it is tobe noted that said air inlet 11 leads from said chamber 9 to the frontside of thefireplace, bringing air to the chamber 9; from the inside andnot" the outside and thereby preventing any possibility of cold air fromthe outside blowing through the chamber. The air chamber 9 is furtherprovided with an im- OFFICE proved outlet 12 that leads therefrom to andaround each side wall 6 as shown in Figure 4. It will, therefore, beparticularly observed that the air that enters said chamber 9 passestherethrough around the side walls 6 and out of the openings 12 on eachside of the fireplace, thus eliminating all pipes and other obstructionsin the smoke flue which has a tendency to retard the smoke and oftencause same to come out of the fireplace and into the room that is beingheated.

The several legs 14 and 15 of theheater are made adjustable by havingeach leg 15 made in two separate pieces, the lateral sides 1 of whichare adapted to fit against one another, and are provided with aplurality of holes 16 that are adapted to carry a bolt 17 having a nut18. By moving the legs up or down, they maybe easily adjusted as toheight and held fastened secure to the heater by simply placing the bolt17 into one or the other .of the various holes 16. As many fireplacesare of different height, 5 the adjustable feature enables the heater tobeadjusted to fit any height fireplace. Al-

so, by raising or lowering the front legs 15 in different proportion tothe rear legs 14:, the angle of the air chamber 9 may be changed to fitdifferent fireplaces and different conditions.

Provision is made to prevent smoke from ever leaking into the airheating chamber 9 by providing angular shaped rear legs 14c and also byextending the top and bottom and side faces 19 of the heating chamber 9beyond the outermost curved surface 10 of said chamber. These cornersthus formed, shown in Figure '3, allows the fire-wall 6 to be fittedinto said corners and incased therearound with mortar making an absolutesmoke tight joint, positively preventing any smoke from the fireplaceleaking into said air heating chamber and finally into the room that isbeing heated.

A damper 20 of any standard make is provided and located in the smokeflue'to regulate the opening therethrough. In the present illustration astandard hinged clamper is shown, but a sliding damper, or any otherstandard type, may be used, it being understood that the damper initself does not constitute a part of the invention.

From theforegoing it will be observed that the heater herein describedis simple and practical and has many advantageous features. The airwhich enters the chamber 9 through inlet 11 is heated as it passesthrough said chamber and is discharged in- ;to the room without, inanyway, obstructing the smoke flue, and other heatis reflected into theroomfby the are shaped outermost metal surface of the heating chamber.

Having thus illustrated and described a certain form of construction andarrangement of parts pertaining to the invention, it is to be understoodthat the improvements may be embodied on any type of fireplace heater,which, obviously, may be built up in any suitable manner, the presentillustration not being utilized as indicating the only form ofconstruction into which the parts may be made; and it is desired toinclude in this application for Letters Patent of the United States ofAmerica, all that comes within the range of the invention asset forth inthe claim hereinafter mentioned.

lVhat is claimed:

The combination with a fireplace structure having a smoke flue and adamper therein, of an air heater mounted in the fireplace: the said airheater comprising an air chamber having an inwardly curved metal faceadapted to fit .over and above the fireplace; the top and bottom and thelateral side faces of said chamber being adapted to extend beyond saidcurved face and form inside corners,therearound that are adapted to befilled with masonry by walls of the fireplace structure; a plurality ofangular shaped legs fastened to the heater; an air inlet leading fromthe front side of the fireplace and into the lower portion of the airchamber; and an air outlet leading from the upper portion of the airchamber and from the lateral side walls thereof and extending outwardlytherefrom beyond each lateral side of the smoke flue and through thefront wall of the fireplace structure In testimony whereof, I hereuntoafiix my signature.

OTTO C. MYER.

